Water-heater



(No Model.)

J. E. MGELROY. WATER HEATER.

No. 435,075. Patented4 Aug. 26, 1890.

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Jem/IE5 [VEEL/my ma Noms versus co., muro-mnu., msnmcmn, u. c.

UNITED STAT-Es PATENT OFFICE.

J AMES F. MCELROY, OF LANSING, MICHIGAN, ASSIGNOR TO THE CONSOLI- DATED OAR HEATING COMPANY, OF IVI-IEELING, TEST VIRGINIA.

WATER-H EATER.

SPECIFICATION forming part of Letters Patent No. 435,075, `dated August 26, 1890*.

Application filed March 25, 1889. Serial No. 304,720. (No model.)

To all whom t may concern:

Be it known that I, JAMES F. MeELnoY, a citizen of the United States, residing at Lansing, in the county of Ingham and State of Michigan, have invented certain new and useful Improvements in Tater-Heaters, ofwhich the following is a specication, reference being had therein to the accompanying drawings.

This invention relates to new and useful improvements in water-heaters, and the invent-ion is especially designed for use in connection with a hot-water-circulating system of piping of the ordinary constructionsuch as used in house or car heating-consisting of piping or radiators provided with a suitable expansion-drum.

The invention consists in the peculiar construction and arrangement of the steamheater for such a system of piping, whereby water may be heated noiselessly by com mingling steam therewith, and at the same time present the smallest possible friction to the free circulation of the water; and the invention further consists in the peculiar construction, arrangement, and combination of the various parts, all as more fully hereinafter described. y

In the drawings which accompany this specification, Figure l shows a perspective View of the hot-water-circulating Aapparatus as used in a car to which my heater is attached. Fig. 2 is a vertical central section thereof. Fig. 3 is a plan View of the steamdistributing nozzle.

Arepresents a stove or heater usually found in cars provided with this class of circulating apparatus.

B is the train-pipe, designed to carry the steam from the locomotive under the cars.

C is the branch pipe for bringing` the steam into the steam-heater, and D is the steamheater, which is preferably arranged in the direct line of the circulating-pipes, and in this caseit is shown in the riser G between the stove and the expansion-drum F.

G is the outgoing-pipe from the expansiondrum. J are the circulating or radiating coils in the car. A suitable valve d is placed in the steam-supply pipe to control the admisn sion of steam into the steam-heater, and the check-Valve Z7 is arranged between the valve a and the heater, as is usually applied in such cases. An overflow-pipe E extends into the expansion-drum to a suitable height to carry off the surplus Water entering through continued admission of steam.

My heater consists of the upper casting c,

the central or main part d, and the lower part l e. The upper part c consists of the casting or pipe provided at its lower end with asuitable screw-thread adapted to enter a screwthreaded aperture in the top of the main part d, and at its other end with the interior screw-thread to receive the exit of the circulating-pipe G. On its side it is provided with a suitable in ternallythreaded aperture adapt# ed to receive the steam-inlet pipe. A bend is preferably cast integral into the upper casting and interiorly screw-threaded to receive the steam-pipe g, which at its lower end has secured to it the perforated nozzle 71.. The main part or body of the heater preferably consists of a pear-shaped vessel, provided at its upper end with the aperture to receive the Lipper part and at its lower end the screw-threaded aperture to receive the lower part e. Upon the interior are provided shaped casting 0, provided on its upper side, j

in the middle,`with the screw-threaded boss, wherebyit maybe readily secured to the pipe g. The upper face of the 8-shaped igure is provided with the inclines p and q. The hollow bars fr are placed across the openings of the 8- 95 shaped figure, as shown, and the whole upper surface of the nozzle is suitably perforated. The perforations in the inclined sides p and q are preferably so arranged as to discharge the steam in the direction at right angles to IOO the plane of their surfaces. Additional wingsl t may be secured to the nozzle if i't is desired to increase the perforated surface.

Within the space between the upper and lower screens k and Z, I preferably arrange shot or gravel, whereby the commingling of the steam and water is noiselessly accomplished in the well-known manner.

A heater thus constructed and arranged is adapted to operate as follows: Steam being turned into the pipe B and the valve a, being opened, steam is admitted into the heater through the` pipe g, thence into the nozzle, where it is distributed around the 8-shaped figure and the connecting-arms, and is discharged through the perforations into the water which is` Within the heaterbetween the screens. This at once heats and circulates the water.

The peculiar construction of the upper and lower screens, whereby at their centralportion they approximate very closely to the steam-nozzle, together with the peculiar shape of the stea1n-nozzle, whereby an open passage-way is provided by the loops in the 8- Shaped figure, allow of the circulation by the most direct route through the commingler and with the least possible friction tothe passage of the water. At the same time a sufficient quantity of the noise-deterring medium is arranged around the steam-nozzle,

and a large area is obtained in a small space for the ingress and egress of the heated water through the screens. Should it be desired to operate the device through the medium of a stove, the advantage of this construction will be readily perceived, as no force is obtained for ,'the circulation of the hot water, except the difference in gravity between the water heated in the stove and that without. In this use the smallest possible obstruction must be provided to the free passage of the water, in order to obtain the full benefit. In the use of the stove it will be seen that the close proximity of the upper and lower screens, together with the central aperture in the steamnozzle in the direct line between the ends of the commingler, permits of the circulation with the least possible obstruction to the cir culation under any circumstances. It is obvious that the same results may be obtained by having the steam-pipe enter from below or through the side of the main chamber.

2. In a water-heater, the combination, with Y the casing, of screens inclosing a porous medium, an open-figured steam-nozzle perforated on one side only and located in the line of circulation between said screens, substantially as described.

In a water-heater, the combination, with the casing, of semi-globular screens arranged with their convex faces toward each other, .whereby they approach most nearly in the lineof water-circulation, and the steam-su p ply pipe and nozzle perforated on one side only between the screens and surrounded by a porous medium, the parts being arranged to operate substantially as described.

4. In a water-heater, the combination, with the casing, of the semi-globular screens arranged with their convex faces toward each other, whereby they approach most nearly in the line of water-circulation, and the steamsupply pipe and nozzle perforated on one side only arranged between said screens, substantially as described.

5. The combination, with the casing and the screens 7c Z therein, as shown, of the sub stantially 8shaped steam-nozzle arranged between said screens and perforated upon one side only, and a porous medium surrounding said nozzle, substantially as described.

6. In a water-heater, the combination, with the casing and the screens 7.; and Z therein, of the steam-nozzle perforated upon one side only and arranged between said screens, the perforated wings t, and the porous medium surrounding said nozzle and wings, substantially as and for the purpose specified.

In testimony whereof I affix mysignature, in presence of two witnesses, this 4th day of March, 1889.-

JAMES F. MCELROY.

\Vitnesses':

J. PAUL MAYER, A. B. EATON.

IOC 

